HEPA (High-Efficiency Particulate Air) vacuums are capable of trapping micron-sizes particles larger than 0.3 microns. If you are concerned with air quality, a HEPA vacuum is worth your consideration and are considered the best choice for allergy and asthma sufferers.
All of these vacuums is a HEPA bag system, which is the most hygienic option and allows your vacuum to provide the best filtration. If you have a bagless vacuum and your dirt cup isn't constantly kept clean, your HEPA filter is not working.
All of these vacuums include a minimum 5-year part warranty
All NEW Vacuums $250 and up include a 2-year Service Warranty!